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      1 /*
      2  * Copyright (c) 2006,2007,2008, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 // All of the functions in this file should move to new homes and this file should be deleted.
     32 
     33 #ifndef SkiaUtils_h
     34 #define SkiaUtils_h
     35 
     36 #include "SkPath.h"
     37 #include "SkXfermode.h"
     38 #include "core/platform/graphics/GraphicsContext.h"
     39 #include "wtf/MathExtras.h"
     40 
     41 class SkCanvas;
     42 class SkRegion;
     43 
     44 namespace WebCore {
     45 
     46 SkXfermode::Mode WebCoreCompositeToSkiaComposite(CompositeOperator, BlendMode = BlendModeNormal);
     47 
     48 // move this guy into SkColor.h
     49 SkColor SkPMColorToColor(SkPMColor);
     50 
     51 // This should be an operator on Color
     52 Color SkPMColorToWebCoreColor(SkPMColor);
     53 
     54 // Skia has problems when passed infinite, etc floats, filter them to 0.
     55 inline SkScalar WebCoreFloatToSkScalar(float f)
     56 {
     57     return SkFloatToScalar(std::isfinite(f) ? f : 0);
     58 }
     59 
     60 inline SkScalar WebCoreDoubleToSkScalar(double d)
     61 {
     62     return SkDoubleToScalar(std::isfinite(d) ? d : 0);
     63 }
     64 
     65 inline SkRect WebCoreFloatRectToSKRect(const FloatRect& rect)
     66 {
     67     return SkRect::MakeLTRB(SkFloatToScalar(rect.x()), SkFloatToScalar(rect.y()),
     68         SkFloatToScalar(rect.maxX()), SkFloatToScalar(rect.maxY()));
     69 }
     70 
     71 // Computes the smallest rectangle that, which when drawn to the given canvas,
     72 // will cover the same area as the source rectangle. It will clip to the canvas'
     73 // clip, doing the necessary coordinate transforms.
     74 //
     75 // srcRect and destRect can be the same.
     76 void ClipRectToCanvas(const GraphicsContext*, const SkRect& srcRect, SkRect* destRect);
     77 
     78 // Determine if a given WebKit point is contained in a path
     79 bool SkPathContainsPoint(const SkPath&, const FloatPoint&, SkPath::FillType);
     80 
     81 }  // namespace WebCore
     82 
     83 #endif  // SkiaUtils_h
     84